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package za.ac.cput.program1.program1;

/**
 *
 * @author Dwayne
 */
public interface program1 
{
    public String welcomeMessage();
    public int add(int a, int b);
    public int subtract(int a, int b);
    public int divide(int a, int b);
    public int multiply(int a, int b);
    public int run();
}
